145714281 has 8 divisors (see below), whose sum is σ = 194410944. Its totient is φ = 97080240.

The previous prime is 145714243. The next prime is 145714297. The reversal of 145714281 is 182417541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145714281 - 2⁹ = 145713769 is a prime.

It is a super-2 number, since 2×145714281² = 42465303374693922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145714201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9925 + ... + 19746.

It is an arithmetic number, because the mean of its divisors is an integer number (24301368).

Almost surely, 2^145714281 is an apocalyptic number.

It is an amenable number.

145714281 is a deficient number, since it is larger than the sum of its proper divisors (48696663).

145714281 is a wasteful number, since it uses less digits than its factorization.

145714281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31311.

The product of its digits is 8960, while the sum is 33.

The square root of 145714281 is about 12071.2170471747. The cubic root of 145714281 is about 526.2200270297.

The spelling of 145714281 in words is "one hundred forty-five million, seven hundred fourteen thousand, two hundred eighty-one".